ABB 2TLA050001R1101 Safety Relay

ABB 2TLA050001R1101 Safety Relay is the MKEY4+ safety relay from ABB Jokab Safety, designed to work with keyed safety switches for guarding machine access. It features a 2NC/1NO contact configuration, a 40 N holding force for the MKEY4+ key, and a NPT threaded housing with a plastic head (the 1101 variant). This plastic-head version is part of the Jokab MKEY4+ family and is intended for use with door interlock applications to implement safe-start/safe-stop logic in machine guarding systems. Typical use cases include safeguarding machine doors and gates, where the safety relay monitors the key-activated interlock and provides the required safety circuit outputs.